How to export an edited clip into a video file in the VSE?
I will try to answer your question. I will be my first answer so bare with me ;-) See the attached image. Specify the render preset (such as the HDTV 720p or some other). Specify frames per second. Enable Sequencer in the Post Processing tab (this will switch render mode from 3D rendering to video sequence rendering). And in the output tab choose H.264 (it will be MPG4 by default as I recall). Also specify an output path and filename. And hit Animation.